wind tunnel

a tubular chamber or structure in which a steady current of air can be maintained at a controlled velocity, equipped with devices for measuring and recording forces and moments on scale models of complete aircraft or of their parts or, sometimes, on full-scale aircraft or their parts.

wind tunnelA chamber through which air is blown at controlled speeds to simulate the motion of objects placed in the chamber through the air, used to study the aerodynamic properties of objects such as automobiles, airplanes, and missiles.